The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 1992
Filed:
May. 31, 1990
Applicant:
Inventors:
Klaus-Dieter Lehmann, Heidenau, DE;
Michael Muller, Bensheim, DE;
Assignee:
Rohm GmbH Chemische Fabrik, Darmstadt, DE;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ; C09D / ; C09D / ; C09D / ;
U.S. Cl.
CPC ...
1062731 ; 106277 ; 1062844 ; 106668 ; 106671 ;
Abstract
A polymer-modified bitumen (PmB) having improved elastic restoration and having a content of 0.5-20 wt. % of polymer components which polymer components are comprised to the extent of at least 20 wt. % of polyalkyl (meth)acrylates having molecular weights greater than 30,000, said polyalkyl (meth)acrylate being comprised of 50-99.8 wt. % of alkyl (meth)acrylates having alkyl groups of 8-26 C atoms, 0.1-2.8 wt. % of polymerizable carboxylic acids, 0.1-2.8 wt. % of polymerizable basic nitrogen compounds; and 0-49.8 wt. % of one or more other polymerizable compounds each having not more than one polymerizable double bond.